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Spin nematic phase of spin 1 quantum systems

Daniel Ueltschi
(University of Warwick)
Mat/Fys-seminar
Mandag, 31 marts, 2014, at 10:15-11:00, in Koll. D (1531-211)
Abstrakt:
I will discuss the phase diagram of the SU(2)-invariant quantum
Heisenberg model with spin 1. A random loop representation allows to
study the nematic phase of this model. Rigorous results can be proved
using reflection positivity. I will also describe some heuristics
based on the loop picture.
Organiseret af: Supported by a grant from the Villum Foundation
Kontaktperson: Søren Fournais